SST Sensing Ltd. 的 Zirconia Oxygen Sensor System 规格书

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FEATURES
Fast response zirconium dioxide (ZrO2) sensor in
conjunction with the OXY-LC oxygen sensor interface board
Long life, non-depleting technology
Integral heating element
High accuracy
Linear output signal
OUTPUT VALUES
Oxygen range (analogue output) 0.1—25% O2
or 0.1—100% O2
Oxygen range (Modbus RTU) 0.1—100% O2
Accuracy after calibration 0.5% O2
Accuracy after calibration 0.5% O2
Output resolution 0.01% O2
Response time (10—90% step) < 4s
Initial warm up time (till stable output) 5—10mins
Output inactive start up delay (heater warm up)
From OFF to ON mode: 60s
From Standby to ON mode (RS485 only): 20s
Need help? Ask the expert
Tel: + 44 (0)1236 459 020
and ask for “Technical”
BENEFITS
No reference gas required
No need for temperature stabilisation
Variety of probe mounting positions available; 28mm,
45mm & 55mm
M18x1.5 screw mounting
TECHNICAL SPECIFICATIONS
Supply voltage
RS485 output variant: 8—28VDC
Analogue output variants: 20—28VDC
Supply current 600mA max. at 24VDC
1.2A max. at 12VDC
Digital output RS485 (Modbus RTU)
Analogue output 4—20mA; load 600Ω max
or 0—10VDC; load 10kΩ min
Pump impedance at 700°C1 < 6kΩ
Permissible gas temperature -100°C to +250°C
Gas flow rate2 0—10m/s
Operating pressure limits3 260—1260mbar absolute
Mounting thread M18 x 1.5
1) The constant current source used in the pump circuit should be designed to drive a load of up to 6kΩ.
2) With baffle fitted to shield the sensor from direct cooling and pollution by the flue gas; refer to DS0122 ZrO2 Screw Fit
Probe Datasheet for fitment details.
3) Sensor and interface for correct barometric pressure compensation.
NOTES
DATA SHEET
Zirconia O2 Sensors
Oxygen Measurement System
Supply
Voltage
Gas Temp Digital
Output
Response
Time
Analogue
Output
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General Note: SST Sensing Ltd. reserves the right to make changes to product specifications without notice or liability.
All information is subject to SST Sensing Ltd.'s own data and considered accurate at time of going to print.
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CAUTION
Do not exceed maximum ratings and ensure sensor(s) are operated in
accordance with their requirements.
Carefully follow all wiring instructions. Incorrect wiring can cause
permanent damage to the device.
Zirconium dioxide sensors are damaged by the presence of silicone.
Vapours (organic silicone compounds) from RTV rubbers and sealants
are known to poison oxygen sensors and MUST be avoided.
Do NOT use chemical cleaning agents.
Failure to comply with these instructions may result in product
damage.
INFORMATION
As customer applications are outside of SST Sensing Ltd.’s control, the
information provided is given without legal responsibility. Customers should
test under their own conditions to ensure that the equipment is suitable for
their intended application.
For detailed information on the sensor operation refer to application note
AN0043 Operating Principle and Construction of Zirconium Dioxide Oxygen
Sensors.
For technical assistance or advice, please email:
technical@sstsensing.com
ORDER INFORMATION
Referring to the tables below will allow you to tailor a system to
suit your specific requirements.
For example: Ordering part numbers OXY-LC-A25-455 and
O2S-FR-T2-18BM-C will create a system that has a 4—20mA
analogue output from the board and a sensor probe that has a
length of 28mm from the sensor tip to the beginning of the
M18x1.5 screw mount.
Interface Board
Sensor
DESCRIPTION
The Oxygen Measurement System is a complete solution
consisting of a zirconium dioxide oxygen sensor and interface PCB.
Dimensional overview given below; full specifications for each,
including complete outline drawing and electrical interface details
can be found:
DS0122 ZrO2 Screw Fit Probe Datasheet
DS0058 OXY-LC Oxygen Sensor Interface Datasheet
Contact technical@sstsensing.com for details.
Interface Board layout
Always handle the interface board using the correct ESD
handling precautions.
Sensor layout
PCB
Part Number
O2
Measure
Range
Output
Type
Heater
Voltage
OXY-LC-485 0.1% and 100% Modbus RTU Configurable
OXY-LC-A25-455 0.1 to 25% Current:
4—20mA 4.55VDC
OXY-LC-V25-455 0.1 to 25% Voltage:
0—10VDC 4.55VDC
OXY-LC-A100-455 0.1 to 100% Current:
4—20mA 4.55VDC
OXY-LC-V100-455 0.1 to 100% Voltage:
0—10VDC 4.55VDC
Sensor Part Number Probe Length
O2S-FR-T2-18BM-A 55mm
O2S-FR-T2-18BM-B 45mm
O2S-FR-T2-18BM-C 28mm